Hi Folks,
I recently installed an internally amplified Bazooka in my car. Sounds great when the car is not running. When I start it the above happens. I have tried running a direct ground to the battery to see if that help, no luck. I tried installing a noise suppression unit at the deck. still nothing.
Not sure what to do?

That sounds like an ignition issue, especially due to the fact that it happens when the car is off. What type of vehicle is the Tube installed in, as well as any modifications, specifically with wires, plugs, or ignition box?